Berkeley CSUA MOTD:Entry 35704
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2005/1/13-14 [Computer/HW/Laptop, Computer/HW/Display] UID:35704 Activity:moderate
1/13    The documentation of my Dell LCD is saying that the contrast
        button is not functional when the LCD is connecting with a DVI
        port. I assume you can still adjust it from the OS? How can I do
        it from Linux?
        \_ If you want to lower the brightness, you can achieve the same
           result by lowering the RGB value at the same time. That's what
           I did to achieve a comfortable viewing brightness for my Dell.
           Right now I am at 0% brightness, and RGB at 48%, the picture is
           really nice. Dell 2005fpw.
           \_ I got one of those 2005fpw's and I think I'll return it. The
              size wasn't as impressive as I thought so I want to wait for
              something better. But another thing was that if I turn out
              the lights and look at a black background, I can see uneven
              light leaking from the top edge. My LCD at work doesn't have
              any trace of that. Then again the 2005 is brighter. But it
              also has a weird viewing angle effect... even just sitting
              in front of it moving my head a bit I notice a purplish
              sheen at some angles. I won't buy another before seeing
              it in person. I hope they get OLED working well soon, that
              would be the proverbial shit.
              \_ purple tint, high viewing angles, good response rate?
                 Sounds like IPS tech!
            http://www.xbitlabs.com/articles/other/display/lcd-guide_23.html
                 I like my Samsung 193P from http://jr.com, but the 16ms MVA panel
                 used on the update of the Viewsonic VP191b at http://newegg.com
                 looks good too (you need models manufactured Dec 2004 or
                 later).  I have the 25ms VP191s and it ghosts, but nice
                 otherwise.
              \_ Hmmm, I have none of the problems. Maybe sample variation.
                 I am really pleased with mine, and I am very picky when it
                 comes to monitor calibration.
           \_ I have no problems with brightness since the brightness button
              does work. -op
              \_ So what do you need to adjust the contrast for? Be more
                 specific on what the problem is that you are trying to
                 solve...
              \_ I wish there were a button on my monitor to turn up the
                 intelligence.  There's a button called "brightness," but it
                 doesn't work.
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www.xbitlabs.com/articles/other/display/lcd-guide_23.html
As for advantages, the IPS technology has always been better than TN+Film in terms of color reproduction and viewing angles. In fact, S-IPS matri ces leave no chance to other LCD technologies in the color-reproduction quality. They have soft and pleasant colors, which are natural and close to high-quality CRT monitors. Thats why all LCD monitors for professio nal work with color are based on S-IPS matrices, starting from relativel y inexpensive to hi-end models of the Eizo ColorEdge series with integra ted tools for custom hardware color-calibration. The viewing angles are a treat after TN matrices: you cant notice any di stortions of the image, sitting in front of an IPS matrix. Theres only one specific defect when youre looking at the screen from a side, bla ck color acquires a characteristic violet hue (by the way, this defect a llows telling an IPS matrix from any other), but the manufacturers are i mproving on this. The only real problem of the S-IPS technology is the low contrast ratio ( about 200:1, like that of an average TN+Film matrix). Thats not noticeable at daylight, but if youre working in a dimly lit room, you may be disappointed at the h ighlighting of the black color (coupled with the characteristic violet h ue when youre viewing the screen from a side). Alas, but due to the reasons explained in the previous section IPS matric es are fully driven off the market of 17 monitors (save for the Iiyama H430S model, whose high response time only makes it suitable for work wi th static images), so the users who are not satisfied with the low image quality of TN+Film matrices but willing to have a low response time hav e to consider 19 models. Fortunately, you can choose here as quite a nu mber of popular models are based on S-IPS matrices: LG Flatron L1910S an d L1910B, NEC MultiSync LCD1960NXi (dont confuse it with the LCD1960NX model, which is based on a matrix of another type), Philips Brilliance 1 90B5 and many others. As concerns their possible applications, monitors with S-IPS matrices are the only wise choice for serious work with color. Besides that, these m atrices seem to be more balanced than others with their excellent viewin g angles and low enough response time, so they will suit people who are choosing a monitor for games, movies and the Internet. TN+Film matrices that have recently entered the 19 monitor market, have a better respons e time but worse viewing angles (140 degrees only), and thus cant be ca lled a good choice for a big-diagonal monitor. Buy, Sell & Rent Used Cisco Networking Equipment Digital Warehouse buys, sells, & rents used Cisco networking hardware such as routers & switches, as well as Juniper, Extreme & Foundry at 50-80% off list price. Priority Electronics - Notebook Online Store Online seller of notebook batteries, accessories, and parts, featuring low prices for all major brands, such as, Dell, Sony, IBM, Toshiba, Compaq, HP, Gateway and more.
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